C++ Program to Store Information of a Book in a Structure

In this C++ program, we will store the information of a book in a structure variable and then display it in screen. We want to store following information for a book Name, Price and ISBN. Here is a sample book record :

Name : Harry Potter
Price : 500
ISBN Code : 7645364

To store the information of a book, we will define an Book structure having three member variable name, price and ISBN.

struct Book {
    char name[100];
    int price;
    int ISBN;
};

Then we will create a variable of structure Book, let's say book1. Then to access the members of book1, we will use member access operator or dot(.) operator.

Points to remember about Structures in C++.
  • We can declare any number of member variables inside a structure.
  • Structure in C++ programming language is a user defined data type that groups logically related information of different data types into a single unit.
  • Keyword struct is used to declare a structure.
  • We can access the member of structure either using dot operator(.) or arrow operator(->) in case of structure pointer.

C++ Program to Store Information of a Book in a Structure

// C++ program to store and print data from a structure variable
#include <iostream>
using namespace std;

// A structure for book
struct Book {
    char name[100];
    int price;
    int ISBN;
};

int main() {
    Book b;
    
    cout << "Enter name of book\n";
    cin.getline(b.name, 100);
    cout << "Enter price of employee\n";
    cin >> b.price;
    cout << "Enter ISBN code\n";
    cin >> b.ISBN;
    
    // Printing Book details 
    cout << "\n*** Book Details ***" << endl;
    cout << "Name : " << b.name << endl;
 cout << "Price : " << b.price << endl;
    cout << "ISBN Code : " << b.ISBN;
    
    return 0;
}
Output
Enter name of book
Harry Potter
Enter price of employee
500
Enter ISBN code
6453645

*** Book Details ***
Name : Harry Potter
Price : 500
ISBN Code : 7645364

In above program, we first declare a variable of type Book as
Book b;
Then we ask user to enter book details i.e Name, Price and ISBN and store it in corresponding fields of structure variable b. Finally we print the information of variable b on screen using cout.